Hangar floor valve



- July 1927' M. Q CORBETT HANGAR moon VALVE Filed April 11, 1925Patented July 5, 1927.

. T NT OFFICE. Y

iszaeaa MATT Q. COBBETT, 01E. CARNEGIE, PENNSYLVANIA. i

H'ANGAR FLO/OR VALVE.

Application filed April 11, 1923. Serial no. 631,331.

' The object of this invention is to provide a suitable valveconstruction and Operating means adaptable particularly for use as ahangar floor valve in connection with inflation conduits for filling gasballoons.

In the conventional type of such construction, the hydrogen line fromthe gas plant terminates in a standardgate or globe valve with an elbowhaving an end of'an inflation tubeconnected thereto. The usual typevalve usedin this connection is a non-rising stem gate valve," noteasily purged and not gas tight. This causes respectively aloss in time,dueto slow actuation of the valve possibility of impure gases, andlossof gas through leakage. a It is therefore proposed to provide a suitabletype of quick acting connection at the point of connection of theterminal of the gas line and the elbow of an inflation tube so designedas to permit complete purging of the connection and at the same timeelimi nate leakage of gas, such connections preferably being flush' withthe floor when used in inflating a balloon in a'hangar.

With theforegoing and other objects in view, the invention'resides inthe c0mbination of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes within the scopeof the appended claims may be made in the precise embodiment illustratedin the accompanying drawings in which- The figure is a vertical sectiontaken through theterminal' of the gas line, the valve, and valveactuating"means,j and the water seal, elbow, and inflation tube.

Referring more particularly to the drawings the valve casing 1 isconnected to a casting 2 by means of bolts 15 and nuts 17 the jointbeing provided withwashers 16. The

I casting 2 is provided with bowl shaped outer casing 34 integraltherewith and closed at the bottom, with an upwardly flaringconstruction. A shallow deposit of soft metal 4, such as lead is placedat the bottom of the thus constructed container 3,

' The lower vertically extending section 12 of the elbow 11 is, whenlowered into the container 3, adapted to rest on the lead base 4. A topplate 5', cent-rally apertured, is placed on the outer casing 34 andretained thereon by a down-turned flange 6 of the plate 5 beingconnected thereto. has an upturned flange 7.

Plate 5 also A circular flange 9 having an angular portion 8 anddownturned portion 10' to rest on the plate 5 outwardly of the flange 7is connected to the section 12. WVhen the container 3 is filled orpartially filled with liquid and the bottom of the section 12 is restingon the base 4, a fluid sealed gas-tight joint is effected as will beclearly seen by the foregoing description. The casting 2 is furtherprovided with an exterior collar 32 attached thereto by means of rivets33.

On a bearing member 31 suitably supported by the casing 1, there ispivoted a check valve 14 being counterbalanced by means of a weight 14integral therewith. A valve seat 13 is provided 'for valve 14 whenclosed, while a valve'seat '18 mounted on the casing 1 by means of abolt 19 is provided for the valve when in open position;

Aball weight 20 is arranged to operate against the counterbalance 14 to.open the valve 14 when desired. The ball 20 is provided with aprojection 21 with an aperture 22 to receive a cable 23 doubled backwith two half-hitches and tied at 24. In an upper section of the elbow11 a bolt 26 is connected and retained by bolts 27 and 28. Cable 23 alsopasses through a hook 29 of the bolt 26 'ZlI1d is doubled'back andfastened at 25. Thus the ball 20 is suspended from the elbow 11 by meansof the cable 23 so that when the extension 12 is on the base 4, the ballbyreason of its weight presses the valve 14 open and against the seat 18in the valve position indicated in full lines.

' The operation of the device is based primarily on the simple bell trapand water seal idea. The new feature is the installation of the clap orcheck valve 14 in order to cut off the free flow of gas when theconnection is open. The drawing shows the elbow in place andthe clapvalve 14 held open by the ball weight 20, thus permitting'a free flow ofgas through the enlarged section 30 to the balloon. To close the valve14, the elbow is lifted off of the water seal in container 3, thuslifting the weight 20, off of the clap valve 14 and permitting it toclose as it seats against the valve-seat 13. To insure gas tightnessafter the removal of'the inflation tube, a suitable cap is placed overthe part 2 and makes a gas tight fit with the exterior collar 32.

Thus there is provided a device of the class described in whichconnection and disconnection between the balloon and gas source may beeasily made; the valve is absolutely gas tight; an attendant cannot havethe valve partly open and allow the gas to escape when not desired;instantimeous disconnection may be made as a safety measure in case oflire; attachment to line may be niade and mounted below the floor. thuslcavii'ig the hangar tloor clear of obstruction.

This device has received actual test and found satisfactory the testconsisting 111 :t'orcing gas through it from one supply balloon toanother under arious pressures. it the beginning of the test the gas wasforced through it by simply hanging sand bags on the supply balloon. Atthe conclusion of the test the pressure was increased to about one inch.

To determine whether a spark sullicient to ignite the gas might becaused by friction in removing the elbow or replacing the cap, thenon-return valve was held open allowing gas to flow through the openingat the top and the elbow and cap placed in position and removed a numberof times. moving them rapidly up and down each time before pulling themoil, and striking against the mouth of the valve in an effort to cause asparlt, the resultbeing the DOIl-OCCUIIQDCQ of any spark which wouldcause a tire and resultant damage.

hat I claim is- 1. In combination, a lower and upper casing and a valvetherebetwcen, said upper casing being provided with a water seah a capmounted on said water seal, an elbow adapted to engage said upper casingand said water seal and having a flange to engage said cap on said uppercasin, said valve being normally closed when suit elbow is disconnectedfrom said upper casing.

52. In combination, a lower and upper casing and a valve therebetween,said upper casing being provided with a water seal, a cap mounted onsaid water seal, an elbow adapted to engage said upper using and saidwater seal and having a flange to engage said cap on said upper casing,said valve being normally closed when said elbow disconnected from saidupper casing, means simultaneous with and solely dependent upon theattachment of said elbow to said upper casing for opening said valve.

3. In combination a lower and upper casing and a valve theiebetwetm,said upper casing being provided with a water seal, a cap for said waterseal. an elbow adapted to engage said upper casing and said water sealand having a flange to engage said cap on said upper casing, said valvebeing normally closed when said elbow is disconnected from said uppercasing, means simultaneous with and solelydependent upon the attachmentof saidelbow to raid upper casing for opening said valve, said meanscomprising a lessees ball weight suspended by a cable from said elbowand adapted by means of its weight to open said valve and retain it insaid 0 3611 position while said elbow is in the assem ly.

4.. ln combination, a lower and upper casing and a. valve therebetween,said up )01 casing being provided with a water seal, a cap for saidwater seal, an elbow adapted to engage said upper casing and said waterseal and having a flange to engage said cap on said upper casing, saidvalve being normally closed when said elbow disconnected from said uppercasing, means simultaneous with and solely dependent upon the attachmentof said elbow to said upper casing for opening said valve, said meanscomprising a ball weight suspended. by a cable from said elbow andadapted by means oiits weight to open said valve and retain it in saidopening posi tion while said elbow is in the assembly, said valve beingdownwardly opening, up wardlv closing, eccentrically pivoted andcounterbalanced to retain said valve normally in closed position.

In combination, a lower and upper cas: ing and a valve therebetween,said upper 'asing being provided with awater seal, a 2211) for saidwater seal. an elbow adapted to engage said upper casing and said waterseal and having a flange to engage said cap on said upper casing, saidvalve being normally closed when said elbow is disconnectedtrom saidupper casing, means simultaneous with and solely dependent upon theattachment oil said elbow to said upper casinglor opening said *alve,said means comprising a ball weight suspended by a cableylrom said elbowand adapted by means of its weight to open said valve. said valve beingdownwardly opening, upwardly closiug eccentrically pivoted andcounterbalanced to retain said 'alve normally in closed position, saidwater seal comprising an outer casing exterior of and integral with isaid upper casing and ad aplcd to receive water to form a water seal,said outer casing having a; lead deposit to term a soft metal scat. torthe lower end of said elbow.

t5. In combination, a lowerand HPPGPCQS- ing and a valve thcrebetween,sari d upper cas ing being provided with a water seal, acap for said*ater seal, an elbow adapted to em gage said upper casingand said waterseal and havinga flange to engage said cap on said upper casing, saidwater seal comprising an outer casing exterior 0t and integral with saidupper casing and adapted to receive water to form a water seal, saidouter oasing having a lead deposit to form a soztt metal seat tor thelower end of said elbow.

7. ln con'ibination, a lower and uppercasing having a valvetherelnatween, said upper casing having central cylindrical por: tionand an outwardly extending flangeportion adapted to provide an annularrecess on said elbow adapted to project over the inner edge of said capsaid valve being normally closed when the elbow is disconnected 10 fromthe upper casing.

In testimony whereof I afiix my signature.

MATT Q. CORBETT

